CentOS 7 修改网卡名称

candy

　　方法一：禁用该可预测命名规则
　　1、对于这一点，你可以在启动时传递“net.ifnames=0 biosdevname=0 ”的内核参数。这是通过编辑/etc/default/grub并加入“net.ifnames=0 biosdevname=0 ”到GRUBCMDLINELINUX变量来实现的。
cat /etc/sysconfig/grub      
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="ipv6.disable=1 crashkernel=auto rhgb quiet net.ifnames=0 biosdevname=0"
GRUB_DISABLE_RECOVERY="true"　　2、运行命令grub2-mkconfig -o /boot/grub2/grub.cfg 来重新生成GRUB配置并更新内核参数。
　　3、reboot
　　

　　方法二：修改rules文件
　　1、文件没有的话可以手动创建，后缀是.rules，按照顺序将MAC地址与网卡名称绑定
cat /etc/udev/rules.d/70-persistent-ipoib.rules
# This is a sample udev rules file that demonstrates how to get udev to
# set the name of IPoIB interfaces to whatever you wish.  There is a
# 16 character limit on network device names though, so don't go too nuts
#
# Important items to note: ATTR{type}=="32" is IPoIB interfaces, and the
# ATTR{address} match must start with ?* and only reference the last 8
# bytes of the address or else the address might not match on any given
# start of the IPoIB stack
#
# Note: as of rhel7, udev is case sensitive on the address field match
# and all addresses need to be in lower case.
#
# ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?*", ATTR{type}=="32", ATTR{address}=="?*00:02:c9:03:00:31:78:f2", NAME="mlx4_ib3"
ACTION=="add", SUBSYSTEM=="net", DRIVERS=="?*", ATTR{type}=="32", ATTR{address}=="?*00:0c:29:7a:1e:16", NAME="eth0"　　2、修改网卡配置文件，配置DEVICE和NAME，并加入HWADDR
　　注：DEVICE、NAME和HWADDR 要和.rules 里面相对应
cat /etc/sysconfig/network-scripts/ifcfg-eth0
TYPE=Ethernet
BOOTPROTO=static
DEFROUTE=yes
NAME=eth0
#UUID=408326bb-7565-4aa5-b156-c89a0ba839d2
HWADDR=00:0c:29:7a:1e:16
DEVICE=eth0
ONBOOT=yes
IPADDR=172.16.18.188
NETMASK=255.255.255.0
GATEWAY=172.16.18.1
DNS=219.141.136.10　　3、reboot